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采用IR光谱法对何首乌及其混伪品的氯仿和乙醇提取液分别进行鉴别,经比较其光谱特征,发现各品种之间有较大的差异,将IR光谱特征编制成检索表,查阅方便,方法可靠。1 材料和仪器1.1 材料 何首乌及其混伪品的拉丁学名,采集地点及鉴定专家姓名同前文。大黄素化学对照品和何首乌药材对照品均由中国药品生
IR spectra were used to identify the chloroform and ethanol extracts of Polygonum multiflorum and its adulterants. After comparing the spectral characteristics, it was found that there was a large difference between the varieties, and the IR spectrum characteristics were compiled into a retrieval table for easy reference. The method is reliable. 1 Materials and instruments 1.1 Materials The name of the Latin name of the root of Polygonum multiflorum and its adulterants, the location of the collection and the name of the identification expert are the same as the previous one. The emodin chemical reference substance and the fleece-flower root reference substance were all controlled by Chinese medicine students.